Najib was given the honour of starting the massive tunnel boring machine, which will bore some 13.5km for the underground section of the proposed 52.2km-long SSP Line.

The SSP Line is the second under the Klang Valley MRT project and will run from Sungai Buloh to Putrajaya through Kepong, Batu, Jalan Ipoh, Titiwangsa, KLCC, Tun Razak Exchange, Bandar Malaysia, Sungai Besi, Serdang, UPM and Cyberjaya.